Graph Theory Tutorials - Chris K. Caldwell
A series of short interactive tutorials introducing the basic concepts of graph theory, designed with the needs of future high school teachers in mind and currently being used in math courses at the University of Tennessee at Martin. An Introduction to
...more>>

Greek Astronomy - MacTutor Math History Archives
Linked essay tracing the history of Greek astronomy from its beginnings with
Thales, in philosophy and timekeeping, through Pythagoras, Eratosthenes,
Hipparchus, Ptolemy, Plato, Aristotle, Aristarchus, and many others; with
references to relevant
...more>>

Harry Bohan's Web Site
Site contains personal info (education, jobs, list of publications), hyperstudio stacks of K-8 math programs (some available for download here, all available by sending the required number of HD disks to Harry Bohan), an extensive page on teaching multiplication,
...more>>

Hilbert's Tenth Problem - Russian Academy of Sciences
A page to promote research connected with the negative solution of Hilbert's Tenth Problem and developed techniques, which have applications in the theory of algorithms, algebra, number theory, model theory, proof theory and in theoretical computer science.
...more>>

A history of Zero - MacTutor Math History Archives
Linked essay on the development of the concept of zero. There are two important but different uses of zero: one as a empty place indicator in our place-value number system, and one as a number itself in the form we use it as 0. There are also different
...more>>

Homepage of Torsten Sillke - Torsten Sillke
A collection of puzzles statements, with references, on a variety of topics: operations research, such as crossing the bridge; logic, including liars and truth tellers, mastermind, and age problems; lateral thinking, also known as "situation puzzles";
...more>>

Honest Open Logical Debate (HOLD)
Debate on math reform - an organization of people in the Palo Alto (California) community who feel that some of the changes being made in the name of educational reform are being implemented too rapidly, and without community input. With an extensive
...more>>

The Indian Sulbasutras - MacTutor Math History Archives
Linked essay on the Sulbasutras, appendices to the Vedas that contain all that is known of Vedic mathematics, and give rules for constructing altars. (The Vedic people entered India about 1500 BC from the region that today is Iran. The word Vedic describes
...more>>

Interval Computations
What is Interval Arithmetic?; Languages for Interval Analysis; Numerical Toolbox for Verified Computing (information on the book and software; in German and English): Pascal and C++ versions; Interval Software; Roundings Necessary for Interval Computations;
...more>>

Introduction to Lacunarity - Erik Rauch
Lacunarity is a counterpart to the fractal dimension, and describes the degree of gappiness of a fractal. It is strongly related to the size distribution
of the holes on the fractal and to its deviation from translational invariance; roughly speaking,
...more>>

Jaina mathematics - MacTutor Math History Archives
Linked essay on the period after the founding of Jainism up to around the time of Aryabhata in around 500 A.D., until recently thought to be a time of little mathematical activity in India. (Jainism is a religion and philosophy which was founded in India
...more>>

Jeffrey C. Lagarias
A member of the University of Michigan Department of Mathematics. List of publications, with many available for download in PostScript format; Lagarias' research interests include Number Theory, also Computational Complexity Theory, Cryptography, Discrete
...more>>

Joel David Hamkins
Blog by a City University of New York (CUNY) professor who researches mathematical and philosophical logic, particularly set theory, with a focus on the mathematics and philosophy of the infinite. Posts, which date back to 2011, have included "The mate-in-n
...more>>

JSTOR: Journal Storage
An effort to ease the increasing problems faced by libraries seeking to provide adequate stack space for the long runs of backfiles of scholarly journals, helping the scholarly community take advantage of advances in information technologies. The database
...more>>

Ken Shirriff
A researcher at Sun Microsystems. Annotated bibliographies on fractals and cryptography, and related papers, which may be downloaded in PostScript format. Graphics of Voronoi fractals (dividing the plane into regions closest to a given point) and fractals
...more>>